Alteration filingOct 17
DOB filing B00313109-I1
Alteration filing at 447 Union Avenue
Recorded as completed5 proposed stories
Open filing Building record · BIN 3421686
447 Union Avenue
447 Union Avenue, Brooklyn, NY 11211
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 2 independently sourced records, including 1 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 3421686
447 Union Avenue
Williamsburg, Brooklyn
A consolidated public-record view · updated Oct 17, 2024
- DOB filings
- 2
- Active-status
- 1
- Recorded addresses
- 2
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings2
Open or active-status records1
First included filingFeb 13, 2020
Latest recorded changeOct 17, 2024
The lot
What is already here?
The lot holds a 5-story hotel built in 2014, on a 5,282 sq ft lot.
- Built
- 2014
- Last altered
- 2011
- Floors
- 5
- Residential units
- 0
- Building type
- Hotel
- Land use
- Commercial and office
- Zoning district
- M1-2/R6A
- Lot area
- 5,282 sq ft
- Building area
- 18,046 sq ft
Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 14, 2026. They describe the tax lot, not any single filing. When the rest of New York went up
Violation record
Are there open violations here?
No open violations are recorded for this building. 14 notices are on file, all with a recorded resolution.
A violation is a notice the Department of Buildings recorded against the building. It is not a judgment, and many concern paperwork rather than safety. Open means the agency has not recorded a resolution, which is not the same as the problem still existing. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Sep 14, 2026.
What is recorded here
Multiple filings, one stable building identifier.
New York City's Building Identification Number helps connect filings that may use different application numbers or describe different scopes of work. The records below are grouped because they publish BIN 3421686. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 2 alteration filing. Its latest status categories are 1 recorded as completed, 1 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Feb 13, 2020
- Latest recorded change
- Oct 17, 2024
- Highest proposed story count
- 5 stories
- Highest proposed unit count
- 52 dwelling units
Highest recorded values may come from different filings and must not be combined into one proposed project. Open the individual filings below for their exact scope. Values outside the publication's conservative data-quality bounds are withheld pending source review.
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Recorded history
What has happened at this address?
Every dated event the city has published for this building, from all 2 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Install new generator structural slab & steel platform in conjunction with nb#320136349 & alt-2# 340476513. no change in use, occupancy and egress under this application. Filing B00313109-I1.
- Permit recorded for alteration02
DOB lists a first permit date for B00313109-I1. That is not by itself confirmation of activity on site.
- Alteration filed03
This application is filed for new emergency generator work in conjunction with nb 320136349. Filing B00453154-I1.
- Alteration approved04
Filing B00453154-I1 reached an approved status.
- Permit recorded for alteration05
DOB lists a first permit date for B00453154-I1. That is not by itself confirmation of activity on site.
- Alteration now approved06
The latest status recorded for B00453154-I1 is “Permit Entire.”
- Alteration signed off07
DOB recorded a sign-off for B00313109-I1.
- Alteration now completed08
The latest status recorded for B00313109-I1 is “LOC Issued.”